摘要: Audio cassettes claimed by distributors to contain subliminal messages embedded within background sounds are currently-widely marketed and advertized. Although perception has generated considerable controversy for many years, recent research suggests that does occur when subjects can detect the presence of a stimulus but have no confidence was even presented. Given minimal condition is detection, audio several were evaluated determine if this satisfied. Spectrographic analyses indicated identifiable speech contained sounds. In addition, using supplied major distributor, listeners could not distinguish between “signal” “placebo” in forced choice detection task. On basis these results, only reasonable conclusion do any conceivably influence behavior.